| Acronym | Meaning |
| ASPG | Antisymmetrized Product Of Separated Geminals Approxn. |
| BO | Bond Orbital |
| BCKA | Branched-chain Keto-acid |
| UW-PG | Uniformly Weighted Planar Grid (method In Calcns. Of Electron-momentum Distributions) |
| MBTS | 2-mercaptobenzothiazyl Disulfide |
| CTF | Contrast-transfer Function |
| HESC | Human Embryonic Stem Cell |
| IMHEX | Internally Manifolded Heat Exchanger (molten Carbonate Fuel Cell Design) |
| RRM | Rayleigh-Ritz Method (for Quantum Calculations) |
| BLM | Bureau Of Land Management |